[1] [1] Anderson M H,et al. Observation of Bose-Einstein condensation in a dilute atomic vapor [J].Science,1995,269(5521): 198-201.

[2] [2] Davis K B,et al. Bose-Einstein condensation in a gas of sodium atoms [J].Phys. Rev. Lett.,1995,75(22):3969-3973.

[3] [3] Bradley C C,et al. Evidence of Bose-Einstein condensation in an atomic gas with attractive interactions [J].Phys. Rev. Lett.,1995,75(9): 1687-1690.

[4] [4] Dalfovo F,et al. Theory of Bose-Einstein condensation in trapped gases [J].Rev. Mod. Phys.,1999,71(3):463-512.

[5] [5] Wu Y,et al. Analytical Method for yrast line states in interacting Bose-Einstein condensates [J].Phys. Rev.Lett.,2001,86(11): 2200-2203

[6] [6] Liu W M,et al. Nonlinear effects in interference of Bose-Einstein condensates [J].Phys. Rev. Lett.,2000,84(11):2294-2297.

[7] [7] Huang G X,et al. Two-dimensional solitons in Bose-Einstein condensates with a disk-shaped trap [J].Phys.Rev. A,2003,67(2): 023604.

[8] [8] Xiong H W,Liu S J,et al. Evolution of a coherent array of Bose-Einstein condensates in a magnetic trap [J].Phys B: At. Mol. Opt. Phys.,2002,35(23): 4863-4873.

[9] [9] Liu S J,Xiong H W,Xu Z J,et al. Interference patterns of Bose-condensed gasses in a two-dimensional optical lattice [J].Phys. B: At. Mol. Opt. Phys.,2003,36(12): 2083-2092.

[10] [10] Xu Z J,Cheng C,et al. Density distribution of Bose-condensed gas in a three-dimensional optical lattice [J].Chin. Phys. Lett.,2003,20(5): 611-614.

[13] [13] Pedri P,Pitaevskii L et al. Expansion of a coherent array of Bose-Einstein condensates [J].Phys. Rev. Lett.,2001,87(22): 220401(4).

[14] [14] Greiner M,Mandel O,et al. Quantum phase transition from a superfluid to a Mott insulator in a gas of ultracold atoms [J].Nature,2002,415(6867): 39-44.